# How could you use cross products to check the solution to this proportion #12/30=5/x#?

You will have to have a solution first ..

To check whether this is correct: cross-multiply...

This is true for any equivalent fractions:

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To check the solution to the proportion ( \frac{12}{30} = \frac{5}{x} ), you can use cross products. Cross multiplying gives ( 12x = 150 ). Solving for ( x ), you divide both sides by 12, yielding ( x = \frac{150}{12} ). Simplifying, ( x = 12.5 ). So, the solution checks out.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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